I'd say that the general topic is not strictly against the rules of the forum which do permit discussions of religion or politics where they directly affect astronomy or spaceflight. Phil would have a tough time discussing ID otherwise.
However, I agree with Maksutov, in the sense that posing it as this question really makes it more of an attack on religious institutions (old or new), and it can't really be discussed openly within our rules without diving into the kind of contentious statements about heartfelt but unprovable matters that we normally try to avoid.
Broadly, there have been many times and places in which both church and state have made policies, and taken actions that have impeded the development and acceptance of science. We would need to define a lot of terms and ground-rules to know which had done more.
I'm going to close this thread, though no one is in any trouble for starting it.
Forming opinions as we speak